Improvement in looms for weaving tapes, ribbons



UNITED STATES PATENT EEmE.

LUGIS J. KNOWLES, OF WARREN, MASSACHUSETTS.

IMPROVEMENT IN LOOMS FOR WEAVING TAPES, RIBBOINS, 86C.

Specification forming part of Letters Patent No. 54,742, dated May l5,1866.

To all whom it may concern:

` Beit known that I, LUcrUs J. KNoWLEs, of lVarren, in the county ofWorcester and State of Massachusetts, have invented a new and usefulImprovement in Looms for Weaving Tapes, Bands, or other Articles of LikeCharacter; and I do hereby declare the same to be fully described in thefollowing specifiv In the drawings, A denotes the frame of snchalooin;B, its lay, and G its cranked shaft for actuating the lay, such shaftbeing provided With two bell-cranks, a a, connected With the lay in theordinary manner by pitmen or connectingrods b b.

The lay-rack is shown at D as arranged within a groove, c, made in therace-beam d of the lay. Two leather or other proper straps, e e, areattached to the rack near its two opposite ends. Each of these strapspasses along underneath the rack a short distance to and partly aroundone of two guidepul1eys or wheels, ff, arranged on the race-beam d inina-nner as exhibited in Fig. 4. From the said wheel the strap descendsand passes underneath and against one of another pairof guidewheels, gg, arranged on journals t' z', projecting from the swords It It of thelay. The two straps are next connected by rods la 7c with a link, l,through the handle of which the pin on of a crank, a, is inserted. Thesaid crank projects from the lower end of an inclined shaft, 0, suitablysupported in bearings p p, extending from an inclined brace or bar, F,going from the back lower girt to the front up; per girtof the lowerframe. The cranked shaft is represented as supported in three boxes, r sr, the middle one, s, of such boxes being upheld by the inclined braceF.

A bevel-gear, t, fixed on the upper end of the shaft o, engages with abeveled pinion, a, fixed on the cranked shaft. This latter shaft havingwhile the loom is in operation a constant rotary motion, will impartsuch a lnovement to the inclined shaft, whose crank while revolving willso move the link l as to cause it to alternately pull on the straps c c,and produce reciprocatinglongitudinal movements of the lay-rack.

This lay-rack is an old and well-known device for aiding in effectingthe necessary movements of the several shuttles of a tape-loom. By theemployment of the crank with the straps and their guide-rollers,arranged with the lay and its rack as specified, I am e11- 4abled togain a peculiarly easy action of the rack, one free from suddenstoppages or arrests of motion,in Which the momentum of the rack wouldbe likely to be productive of deleterious effects to the mechanism.

By my improved mechanism the rack is held firmly or under control at anypart of its movement.

Having thus described my said mechanism for operating the lay'rack'of atape-100111 or a loom for weaving narrow fabrics, what I claim as of myinvention is as follows:

1. A combination composed not only ofthe straps c e and theirguide-wheels, as applied to the lay and its rack, substantially as described, but of the crank n, the shaft 0, and the bevel-gears t u, ortheir mechanical equivalent or equivalents, operated by the crankedshaft of the lay.

2. The straps e e and the guidewheels j" f g g, arranged and combinedtogether and with the lay and the rack, substantially in manner or so asto be opera-ted by a crank or its equivalent, as specified. Y

3. The arrangement of the shaft o and its crank .n and gear t with thecrank-shaft G and its pinion u, and the straps c e, applied to the layand its rack, substantially as specified.

LUCIUS J. KNOWLES.

Witnesses:

R. H. EDDY, F. P. HALE, Jr.

